JPH08245020A - Belt-like material winding device - Google Patents

Abstract

PURPOSE: To automate fitting/removal between a hub and a reel holder in a winding device using the reel holder provided with sliding clutch mechanism and mounting the hub on the reel holder to wind belt-like material on the hub. CONSTITUTION: A clamping member 25 is fixed to the tip of a rod 24 connected to a piston 23 built in the holder body 14 of a reel holder 12. The clamping member 25 is energized in the outward direction of the holder body 14 by a compression spring 27 to clamp a hub, and negative pressure is supplied from an air pressure supply passage 31 in a rotary shaft 11 so as to act upon the piston 23. The clamping member 25 is thereby sucked against the elastic force of the compression spring 27 to release the clamping of the hub.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band-shaped material winding device for winding a band-shaped material on a ring-shaped hub via a reel holder by mounting a reel holder having a slip clutch on a rotary shaft, and more particularly to a reel holder. The present invention relates to a technique for automating the attachment / detachment operation of a hub attached to the outer periphery.

[0002]

2. Description of the Related Art As a conventional winding device of this type, a device applied to a slitter device for obtaining a plurality of products (strips) of a predetermined width from a wide raw material in the production of a magnetic tape or film. is there. The slitter device cuts a wide raw material unwound from the unwinding shaft into a predetermined width with a cutter, and winds a plurality of cut strips to manufacture a strip-shaped roll (pancake). A reel holder having a slip clutch is used for the winding portion of the belt-like material in order to keep the winding tension of the belt-like material constant. When winding the strip using the reel holder in this way, it is necessary to install a ring-shaped hub for winding the strip as a pre-work before the winding work. The hub must be removed from the reel holder.

A conventional reel holder / hub attachment / detachment structure will now be described with reference to FIG. In FIG. 7, a reel holder 2 attached to a rotary shaft 1 includes a holder main body 4 attached to the rotary shaft 1 via a bearing 3 and rotatable with respect to the rotary shaft 1, and a rotary shaft fixed to the rotary shaft 1. And a rotary plate 5 made of a magnetic material that rotates integrally with the rotary shaft 1. When the rotary plate 5 rotates integrally with the rotary shaft 1, the holder body 4 is attracted by a permanent magnet 6 provided on the side face of the rotary plate 5 side to the holder. The main body 4 is configured to rotate. A collar portion 7 and a coil spring 8 are provided on the outer periphery of the holder body 4, and when a ring-shaped hub 9 is mounted on the outer periphery of the holder body 4 as shown in the figure, a reaction force due to the deformation of the coil spring 8 is generated. The hub 9 is fixed by utilizing it, and the hub 9 is held perpendicularly to the rotary shaft 1 by the collar portion 7.

[0004]

However, in the structure for attaching and detaching the hub 9 as in the conventional structure, a force for deforming the coil spring 8 is required for attaching and detaching the hub 9, and the hub 9 is attached and detached manually. Currently, the work is being done. Further, in a magnetic tape slitting device, a large number of reel holders are arranged in a row on a single rotating shaft to perform a winding operation of a belt-like material. However, the flange portion 7 of the adjacent reel holder interferes with the removal of the hub 9 only, and the hub 9 is removed from the reel holder 2 after the reel holder 2 is removed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a winding device for a belt-like material which enables automation of the attachment / detachment work of the hub to / from the reel holder.

[0006]

For this reason, the present invention comprises a holder main body that is rotatably supported by a rotary shaft via bearings, and a slip clutch that transmits the rotation of the rotary shaft to the holder main body. A belt-shaped material winding device configured to wind a belt-shaped material around the outer periphery of the holder body of a reel holder by fitting and holding a ring-shaped hub through the reel holder by rotation of a rotating shaft. An air cylinder is built in the holder main body, and a hub fixing clamp member that can be pressed against the inner surface of the hub is provided at the tip of the rod extending in the holder main body radial direction of the air cylinder, while the air cylinder is provided inside the rotary shaft. An air pressure supply path for communicating air pressure for driving the air cylinder is formed.

The air cylinder further includes a compression spring for elastically urging the clamp member in the hub pressure contact direction.
When the negative pressure is supplied from the air pressure supply passage, the clamp member may be moved in the direction of separating from the hub against the elastic biasing force of the compression spring. Further, the air cylinder may have a structure in which the rod can freely reciprocate, and the clamp member may be moved in the hub pressure contact direction when a positive pressure is supplied from the air pressure supply passage.

Further, it is preferable that three air cylinders are arranged at equal intervals in the circumferential direction of the holder body.

[0009]

In the strip-shaped material winding device having such a structure,
By supplying and exhausting air pressure to the air cylinder in the holder body, the clamp member can be pressed into contact with or separated from the inner surface of the hub. Therefore, if the drive of the air cylinder is automatically controlled in synchronization with the hub attachment / detachment operation. It is possible to automate the attachment and detachment of the hub.

Further, when the hub is mounted, the elastic force of the compression spring presses the clamp member against the inner surface of the hub, and when the hub is removed, a negative pressure is supplied to the air cylinder to separate the clamp member from each other. There is no need to supply air pressure inside. Further, if a positive pressure is supplied to the air cylinder to bring the clamp member into pressure contact with the inner surface of the hub, a compression spring for pressing the clamp member with the inner surface of the hub is not necessary in the air cylinder, and the structure of the air cylinder can be simplified.

Further, by arranging a plurality of air cylinders at equal intervals in the circumferential direction of the holder body, it is possible to uniformly apply a pressure contact force to the hub, and to stably hold the hub.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The essential structure of the first embodiment of the winding device of the present invention will be described with reference to FIGS. The first embodiment is an example of using a negative pressure as the air pressure. In the figure, 1
A plurality of reel holders 12 are arranged in a row on the rotary shaft 11 of the book. Each reel holder 12 has the same structure, and the rotary shaft 11
A holder body 14 that is rotatably supported by a bearing 13 on the
And a rotary plate 15 of a magnetic material fixed to the rotary shaft 11 so as to face the side surface of the holder body 14 with a space therebetween, and a permanent magnet 16 is provided on the side surface of the holder body 14 on the rotary plate side. .
The reel holder 12 has a structure in which when the rotating plate 15 rotates integrally with the rotating shaft 11, the holder body 14 rotates with a predetermined amount of sliding with respect to the rotating plate 15 due to the attractive force between the rotating plate 15 and the permanent magnet 16. A slip clutch is composed of 15 and the permanent magnet 16.

As shown in FIG. 2, cylinder chambers 21 extending in the radial direction are formed in the holder body 14 at three equal intervals along the circumferential direction. A piston 23 having a packing 22 on the outer periphery is slidably accommodated in the cylinder chamber 21. A rod 24 connected to the piston 23 penetrates and extends in the outer peripheral direction of the holder body 14, and a clamp member 25 that is curved with substantially the same curvature as the holder body 14 is fixed to the tip of the rod 24. In addition, the rod between the bottom wall of the groove 26 formed on the outer periphery of the holder body 14 and the clamp member 25.
Around the periphery 24, a compression spring 27 is provided which constantly elastically biases the clamp member 25 in the outward direction (hub press contact direction). Here, the cylinder chamber 21, packing 22, piston
The air cylinder is composed of 23, the rod 24, and the compression spring 27.

An air pressure supply passage 31 for supplying air pressure to the cylinder chamber 21 is formed in the rotary shaft 11. The air pressure supply passage 31 extends in the radial direction from the main passage 31A at the mounting portion of each reel holder 12 and a main passage 31A that extends in the central portion of the rotating shaft 11 in the axial direction to connect to an air pressure supply source (not shown). Two
As shown in FIG. 3, a branch passage 31B is provided which extends radially and communicates with the cylinder chamber 21 through a space 28 at the center of the reel holder 12.

Next, the operation will be described with reference to FIGS. 3 and 4. FIG. 3 shows a clamped state of the hub 40. When mounting the hub 40, first, negative pressure is supplied to the main passage 31A of the air pressure supply passage 31. The negative pressure acts on the piston 23 of the cylinder chamber 21 from the space 28 of each reel holder 12 through the main passage 31A and each branch passage 31B. This allows
The piston 23 descends in the figure against the elastic biasing force of the compression spring 27, and the clamp member 25 descends to the outer peripheral surface of the holder body 14 via the rod 24 as shown in FIG. In this state, the ring-shaped hub 40 is aligned with the center of the clamp member 25. After the hub 40 is aligned, the negative pressure in the air pressure supply passage 31 is released to the atmosphere, so that the elastic biasing force of the compression spring 27 causes the clamp member 25 to be pressed against the inner surface of the hub 40 as shown in FIG. Then, the hub 40 is clamped, and the mounting of the hub 40 on the reel holder 12 is completed.

When the hub 40 in the clamped state as shown in FIG. 3 is removed from the reel holder 12 after the winding operation of the belt-like material is completed, the negative pressure is supplied in the same manner as described above so that the clamp member 25 shown in FIG. Then, the hub 40 is released from the clamped state. And, on the outer periphery of the holder body 14,
Since the conventional collar 7 does not exist, the hub 40 can be moved in the axial direction of the rotary shaft 12 even if another reel holder 12 is adjacent to the hub 40, and it is not necessary to remove the reel holder 12 together. Only 40 can be removed.

According to this structure, it is possible to automate the attachment / detachment work of the hub 40 to / from the reel holder 12, and the manual attachment / detachment work of the hub 40 is not required. Further, even when a large number of reel holders 12 are lined up on one rotating shaft 11, a plurality of pancakes in which a belt-like material is wound on the hub 40 by using a robot or the like are simultaneously reel-holdered.
It is possible to remove from 12. Therefore, it is possible to significantly reduce the time for winding the strip-shaped material, and it is possible to improve the work efficiency.

In the first embodiment, the negative pressure is used, but the positive pressure can also be used. The configuration for using positive pressure is the same as that of the first embodiment except that the compression spring 27 is removed from the configuration of the first embodiment. The operation of the second embodiment having a configuration using positive pressure will be described with reference to FIGS.

To mount the hub 40, as shown in FIG. 5, after positioning the clamp member 25 at the center of the clamp member 25, positive pressure is supplied to the air pressure supply passage 31. As a result, the piston 23 moves upward, and as shown in FIG.
25 moves upward and presses against the inner surface of the hub 40, and the hub 40 is clamped. When removing the hub 40 from the reel holder 12, if the positive pressure supplied to the air pressure supply passage 31 is released to the atmosphere, the clamp member 25 becomes free.
Is released from the clamp state, and the reel holder 12
40 can be removed.

Also in the case of the second embodiment, the attachment / detachment work of the hub 40 can be automated similarly to the first embodiment. When positive pressure is used, it is necessary to constantly supply air pressure during the winding operation in which the rotary shaft is rotated, but when negative pressure is used, the compression spring 27 of the compression spring 27 is used during the winding operation. Since the hub 40 is clamped by the elastic urging force, it is not necessary to supply the air pressure when the rotating shaft 11 rotates, and it is sufficient to supply the air pressure only when the rotation is stopped. It is preferable to use negative pressure. Further, as the slip clutch mechanism of the reel holder, an electromagnet may be used instead of using a permanent magnet.

[0021]

As described above, according to the present invention, since the clamp member is driven by using the air pressure to attach / detach the hub, the attaching / detaching operation of the hub to / from the reel holder can be automated. Therefore, the conventional manual attachment / detachment of the hub is not required, and the work time of the work for winding the strip can be greatly reduced.

If the hub is clamped by the elastic force of the compression spring and the negative pressure is supplied to release the clamp, the air pressure need only be supplied when the rotating shaft is stopped. Pressure sealing becomes easy. Further, if the hub is clamped by using positive pressure, there is an advantage that a compression spring is unnecessary and the structure of the air cylinder can be simplified.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing a first embodiment of a winding device of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a diagram showing a clamped state of the hub according to the embodiment.

FIG. 4 is a view showing a unclamped state of the hub according to the embodiment.

FIG. 5 is a diagram showing a unclamped state of the hub according to the second embodiment of the present invention.

FIG. 6 is a view showing a clamped state of the hub according to the embodiment.

FIG. 7 is an explanatory diagram of a conventional reel holder / hub attachment / detachment structure.

[Explanation of symbols]

 11 Rotating shaft 12 Reel holder 13 Bearing 14 Holder body 15 Rotating plate 16 Permanent magnet 21 Cylinder chamber 22 Packing 23 Piston 24 Rod 25 Clamp member 27 Compression spring 31 Air pressure supply passage 40 Hub

Claims (4)

[Claims] 1. A reel holder equipped with a holder body, which is rotatably supported by a rotating shaft via bearings, and a slip clutch, which transmits the rotation of the rotating shaft to the holder body, around the outside of the holder body. Holds a ring-shaped hub,
In a belt-shaped material winding device configured to wind a belt-shaped material around the hub via a reel holder by rotation of a rotating shaft, an air cylinder is built in the holder body, and a rod extending in a radial direction of the holder body of the air cylinder. A structure is provided in which a clamp member for fixing a hub that can be pressed against the inner surface of the hub is provided at the tip, and an air pressure supply path that communicates with the air cylinder and supplies air pressure for driving the air cylinder is formed inside the rotation shaft. A winding device for a strip-shaped article. 2. The air cylinder includes a compression spring that elastically biases the clamp member in the hub pressure contact direction, and resists the elastic biasing force of the compression spring when negative pressure is supplied from the air pressure supply passage. The winding device for a belt-like object according to claim 1, wherein the clamp member is configured to move in a direction away from the hub. 3. The air cylinder is configured such that the rod can freely reciprocate, and is configured to move the clamp member in a hub pressure contact direction when positive pressure is supplied from the air pressure supply passage. A winding device for the band-shaped article described. 4. The three air cylinders are arranged at equal intervals in the circumferential direction of the holder body.
3. The winding device for a strip-shaped article according to any one of 3.